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Efficient photocatalytic reduction of CO2 by amine-functionalized g-C3N4.
- Source :
-
Applied Surface Science . Dec2015 Part A, Vol. 358, p350-355. 6p. - Publication Year :
- 2015
-
Abstract
- Photocatalytic conversion of CO 2 into hydrocarbon fuels using semiconductor photocatalysts has attracted great attention, which is considered as a promising approach to resolve the energy shortage and greenhouse effect. In this work, amine-functionalized g-C 3 N 4 was prepared by heating urea at 500 °C, with a subsequent functionalization treatment by monoethanolamine solution. The amine-functionalized g-C 3 N 4 exhibits improved photocatalytic performance on CO 2 photoreduction, which can be attributed to the enhanced CO 2 adsorption capacity. The optimized photocatalyst shows much higher CO 2 conversion efficiency as compared to pure g-C 3 N 4 under the same conditions, with a CH 4 -production rate of 0.34 μmol h −1 g −1 and CH 3 OH-production rate of 0.28 μmol h −1 g −1 . This work demonstrates the surface amine functionalization is a successful strategy to improve the CO 2 adsorption capacity of g-C 3 N 4 for the enhancement of CO 2 photoreduction activity. [ABSTRACT FROM AUTHOR]
- Subjects :
- *PHOTOREDUCTION
*AMINES
*CARBON dioxide reduction
*PHOTOCATALYSIS
*GRAPHITE
*NITRIDES
Subjects
Details
- Language :
- English
- ISSN :
- 01694332
- Volume :
- 358
- Database :
- Academic Search Index
- Journal :
- Applied Surface Science
- Publication Type :
- Academic Journal
- Accession number :
- 111302178
- Full Text :
- https://doi.org/10.1016/j.apsusc.2015.07.082